陈述：主：I，问：aren`I
陈述：谓：wish，问：may+主
陈述：ought to，问shouldn`t/oughtn`t+主语
let us……will you？
let`t……shall we？
used to……didn`t
would rather……wonldn`t
You`d like to……wonldn`t
have to……don't+主
has……doesn`t
had……didn`t
have done……haven`t
has done……hasn`t
had done……hadn`t
used to……didn`t
had better……hadn`t
would rather……wouldn`t
You`d like to……wouldn`t
must be……isn't
must have……haven`t
must have done……didn`t
must be going to……won`tis
陈述：含否定含义词，疑问：肯定
否定前缀不视为否定词
否定含义词：no，nothing，nobody，never，few，seldom，
nardly，rarely，little，scarcely，barely
主语为指物代词问：it
主语为挡人代词，问：they
主语为动词不定式，短语，动名词，问：it
并列句由邻近句定疑问主谓
状从，定从，宾从主从复合由主句定疑问主谓
主I,we谓knou，think，believe，guess，expect，suppose，imagine
I`m sure that，I`m afraid that，we are sure that，we are afraid that，
I feel sure that，It seems that，It is said/reported/beliered that
疑问由从句定
